Boat launching and stowing apparatus.



5 BKEBTB-SKBBT 1,

Patented Dec. 8, 1908.

- Ina/en to? 62;." HM/- P. B. MV'TN. sou LAUEGHING Am) s'rffwme APPARA. s. APIZ IOATIOH FILED FEB 21 1908 uranium-In running:

17112: ass

P; E. mm. BOAT LAUHOEIHG AND STOWfiIG APPARATUS.

LPLIfIATIOI Z'ILBD FEB. 21, 1908. Patented Dec 8' 6 SHEETS-S 3321' 4.

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FRED ELLSWORTH MARTIN, OF OAKVILLE, 0Y1

ARIO, CANADA, ASSIGNOR 'ZQ CEABLE E ARMEL BOONE AND SAMUEL WEYLIE MQKEOWK, OF TORQZ'ITG, CANADA.

1:0. seems.

Application died February 2'1, 1843.

To all wlzom it may concern:

MARTIN, of the town of Qairville, in the county of Halton and Province or Ontario,

new and useful Improvements in Boat Launching and Stems Apparatus; and I hereby declare that the following is it full, user, and exact description of the some.

".ihis invention relates to a device b which a host can be quickly and easily lowered from a ships deck into the water. and

' quickly and easily raised from the water and friction brakes for the winding stowed in a fixed place on the ships deck, and relates particularly to the specific construction and arrangement of the parts win h orovide for the launching and stowing oi the host as hereinafter described and particuierlv pointed out in the claims.

or an understanding of the invention refcreate is to be bed to the following description and to the accompanying drawings or -hichz Figure 1, is a plan View of ionizing at it from the top. F 2, 18 a resr elev stion of the parts shown in ig. 1. Fig. 3,, is an end elevation with wart of the track- Wsys removed showing the dovit cranes, dsvit falls, winding gear for the dsvit fails, gear and the host saddles. 4, is an elevation of the parts shown in Fig. 3, looking at them from the opposite side. Fig. 5, is a perspective view of one of the devit cranes. Fig. 6, is a perspective View of the bost seddies and boot nooks. ig. 7, is a perspective view of the dovit carriage operating gear. Fig. 8, is a dcteii 'iew of part of the winding mechanism for the davit falls with the view partly in section. Figs. 9 and 10, are detail views of the friction brake for the winding mechanism.

Like characters of reference refer to like parts throughout the specification and drawm s.

Securely fastened to the deck 1 are two parallel trackwavs 2 leadin to the ship's sides and laterally separate vfrom one another by at least the length of the boat to be held by the davit cranes. Each trackwsy is formed by two channel beams 2, with their bottom flanges 2" constituting the treads for the devit carriages and securely fastened to the deck, and their top flanges 2 sepsrsted from: one another by an unoccupied are "o the agpsretus & s 3 permit of the movement of the davit ca.

Speefleeta'on of Letters 5 l l i l Patent.

Eat-antes. Dec. 8, 186%.

riages on the treads. Traveling upon the Be it known that I, FRED ELLSWGRTEI tread of each trackwsy is e davit carriage 3 consisting of en i-besm 3 extending length wise of the trsokssy, a truck secured tr; Dominion of Canada, have invented cert-sin the bottom flanges 3 of the i-heem, and

. an tiiricticn rollers 5 journeled to the truck siren-grid to 1:2. 'ei on the areal of tree-swag; Joorneied to each I-nessi 3* are anti-friction rollers 6 to contact the 111118! surfeces of the ion flanges 3 and assist the en-ti 4 roiiers 5 in maintaining the carnage in en upright position.

Secured to en dsvit carriage 3 r. devit crane '1' consisting of an are shaped I-besm extending from the inboard end of the dsvit rsrris.ge, ;n on up ardly end ontha'mrd: cone-i directs-n, and secured to each dsvit crane near the upper end thereof is a. brace 8 the lower end of which is secured to the out board end of the devil; carriage so that the 5-??655 of the crane and the load thereon be distributed between the inboard and out oard ends of the devit csrriag.

Projectin from the upper ends of the inner faces of ihe den-rt cranes are studs 9, and

rouolubly mounted on the studs 9 are groo'cod idlcrs 10. Projecting horizonteily from the inner faces of the dovit cranes immediately shove the davit carriages 3, are horizontal pistes bone-d a channel beam 12 to couple the devit carriages together and cause their unit d. movement as may troel on the tmcicwe s Bolted to the under side of the charm-c3 be .12 is 9. channel ity of the .oeszn 13 to increase the ri i cns-nnel beam 12, and cons actor. to the channel beam 13 and to the dent cranes 7 are stsyrods 14. Pro'ecting centrally from the top of the channel beam 12 is a shaft bearing 15, and secured to the davit cranes 7 are journal boxes 16 the bearings of which are alined with the shaft bearing 15 and journaled in the shaft bearing 15 and journal boxes 16 is s winding shaft 17. One end of the windin shaft 17 pro'ects beyond the outer side 0 the adjacent nvit crane 7, and mounted on the projecting end of tho winding shaft 17 is a spur wheel 18 meshing with a pinion 19 'oumsled to the adjacent davi't crane 7. he pinion 19 is rotated, by a crank 20, to revolve the spur wheel 18 and winding shaft 17. Connected to the sear xvi-eel 13 s e friction drum 2 and oznhrecng ruin is hrstiicstrap 22,

the

- 1 and or which is permanently connected to e.

11 to which is rigidly iii;

1 shit fittsd with a mod wheel or not by which the frictional coni -ct of the hirako strap 22 with the friction drum 2! can be increased or diminished.

Mounted on the Winding shaf 17 are wind-- Eng drums 26 slined with the grooxed l-zllfilfi 10 and connected to the winding drums are do: it falls 27. The devil; falls 27 extend from the Winding drums 28 0 or the grooved idiom 1.0, and are prozided with boat hooks 28 to engage with the boat rings of the best (not shown).

Suspended from the under side of the horizontal plates 1. shaft bearings 29 and susocnde-d from the channel beam 12 is e hearing 36 alined with shaft bearings f'l). Journoled in the shaft bearings 29 end 30 e heaving shaft 31 prodded with. pinions 32 which mesh with the stationary Packs 33 connected to the inner sides of the trackways 2. Mounted on the hos ing shaft 11- is a worm wheel 34 and meshing with the worm 1 who-cl 34 is a worm 35, g'eurnnled in bearings 36, suspended from the chennehbcsm 12.

The worm 35 is provided with a spur wheel 37 meshing with a spur wheel 38 having sir.

axle 39 journslcd in bearings 40, extending; from the channel beam is fitted to receive a. crook 41 by which. the spur wheel 38 is rotated to cause the revolutron of the spur wheel 37 and worm 35. The revolution of the worm 35 causes the revolution of the worm wheel 34, heaving shaft 31, and pinions 32.

Timboot in. its inboard position is supoerrmt on host saddles 42 hin ed to the deal-r. so that, they can be lowers with it or raised into a plane at so :mgl thereto. Lsshing hooks 3 are fastenor! h. the deck by flexible boot l shings 54 cc.pc..-u nf being tightened to draw the lash; hooks tightly against the gunwalcs of thr. host. and force he keel and bottom of too host tightly into contact with and hold it immovable on the boat saddles which are locked in their raised position by hooks 42 connected to the deck 1.

When it is desired to launch the boat, the hooks 42 are disconnected from the boat saddles 42, the host leshin 's are slackened the boat gunwale. The devil; is ls are then. tightened to relieve the boat sad les of the weight of the boat so that the boat saddles can move to their lowered position. The crank 41 is then turned in the direction indicated is arrow to revolve the spur wheel 38 ant cause the revolution of the spur whml 37, worm 35, worm wheel 34, and hcav in shaft 31. The revolution of the hearing shaft 31 causes the pinions 32 to revolve E2. The arts 31L into contact.

g l l l i and engage with the teeth or the raclrs and move devrt cranes toward outboard end of the trackways until 2 outboard movement is arrested tracltwef' ston 45, we rcvolut 1 of the osite drcc- 1. I "l dust indicated a, crroivi causes the cranes to move towards the inboard and o the racswavc tihen the dsvit cranes .sevs

Pods or .qrav-i v. T raise the. host n ni n l9 r-r lvhd by he crank 22). 'ih revolution of the nin on l9 revolves th s 1 whe l 18 and winding shaft 27 to wind w dcvit fa ls on the w nriling' lmms 26. '3 l2 o irc of tin: (ism-t. tells on the virulro" ori ns raises the host.- to he top c2 daviii cranes and when the boat, has been raised the nut 25 is turned on the bolt- 24 to tigh en the brake st ap 22 against the fric on drum and p vcnt. ti?! unwinding rm" olution of the friction drum and Winding shaft when the power is removed from the crank 20. The crank 41 is then operated to move the dsvit cranes to their inboard nosition and bring tho keel of the hon shove the center of 2hr? host saddles whi t have been onwiuuslv raised to cnupright position and locked by the saddle hooks 42". The nut 25 is then turned to slackemthi', hrnke strep 22 to permit of the unwimlir t revolution of the friction drum, heaving: shaft, and Winding drums, so that the host can descend 'o the boat saddles. When ll; host is seated on the host saddles the lush ins: hooks 43 are cngngod with the hot: wales an i t e hoot lSS XlYIFI-Q -24 lartcncd unt l the kccl and hollow. l t e: lost or secu ely hold in contac with m: noel ssddlcs when the boot lashing lid't' been tightened the pinion )9 is turn ad to revolve the spur wheel 18 end windin shell, 17 to wind up the slack of the devil: gills.

Havin thus fully described my invention what I cllaim as new and desire to secure by Letters Patent is l. A boat launching and stowing apparatus comprising two parallel trnckwnys lending to tho shin's side, a rack for each treclv and the lashing hooks are isenaged from way, and a. w it carriage consisting of n dnvit crane mo able on. each of said track ways, a transverse beam connecting the devil. cranes together so that they will move uuitedly, a transverse heaving shaft mounted in bearings connected to the davit curriage, pinions mounted on the transverse shaft, engaging with said racks. and opcrahlc moons for iicluating the heaving shaft, said operable means consisting of nworm shaltjournuled in bearings connected to the davit attained ihir outboard r osition, the nut 25 me: at E7 to fr ly revolve by the. town i n of the dsvitfalls as the host an v.

carriage, a worm mounted upon the worm shaft, a worm wheel mounted upon the heaving shaft engaging with the worm, a spur wheel mounted on the worm shaft, a pinion shaft journaled in bearin connected to the davit carriage, a pinion mounted on the pinion shaft and means for causing the rotation of the pinion shaft. 7

2. A boat launching and stowing ap aratus comprising two parallel trackways leading to the shi s side, a rack for each trackway, and a avit carriage consisting of a davit crane movable on each of said trackways, a transverse beam connecting the davit cranes together so that they will move unitedly, a transverse hea shaft mounted in bearings connected to the davit carriage, pinions mounted on the transverse shaft engaging with said racks, and operable means for actuating the heaving shaft, said operable means consisting of aworm shaft journaled in bearings connected to the davit carriage, a worm mounted upon the worm sha a worm wheel mounted upon the heaving shaft engaging with the worm, a spur wheel mounted on the worm shaft, a pinion shaft jouznaled in bearings connected to the avit carriage, a pinion-mounted on the pinion shaft and means for causing the rotation of the pinion shaft, and a winding shaft mounted in bearings connected to the davit carriage, idlcrs connected to the davit cranes, winding drums mounted upon the winding shaft and davit falls passing over the idlers to be wound on, and unwound from, the winding drums.

3. A boat launching and stowing ap aratus comprising two parallel trackways ieading to the shi s side, a rack for each trackway, and a dhvit carriage consisting of a davit crane movable on each of said trackways, a transverse beam connecting the davit cranes together so that they will move unitedly, a transverse heaving shaft mounted in bearings connected to the davit carriage, pinions mounted on the transverse shaft engaging with said racks, and operable means for actuating the heaving shaet, said operable means consisting of a worm shaft journaled in bearings connected tc the davit carriage, a worm mounted upon the worm shaft, a worm wheel mounted upon the heaving shaft engaging with the worln a spur wheel mounted on the worm shaft, a pinion shaft journaled in bearings connected to the davit carriage, a pinion mounted on the pinion shaft means for causing the rotation of the pinion shaft, a winding shaft mounted in bearings connected to the davit carnage, winding drums mounted upon the winding shaft, idlers connected o the davit cranes, davit falls passing over the idlers to he wound on, and unwound from, the winding drums, a spur wheel mounted on the winding shaft, a pinion shaft mounted in bear ings connected to the davit carnage, a pin on mounted on the pinion shaft engaging with the spur wheel of the winding drum and means for causing the rotation of the pinion.

4:. A boat launching and stowing ap are. tus comprising two para lel trackways cading to the ships side, a rack for each tracK- way, and a davit carriage consisting of a davit crane movable on each of said trackways, a transverse beam connecting the davit cranes together so that they will move unitediy, a transverse heaving shaft mounted in bearings connected to the davit carriage, pinions mounted on the transverseshaft engaging with said racks, and operable means for actuating the heaving shaft, said operable means consisting of a worm shaft journaled in bearings connected to the davit carriage, a worm mounted upon the worm shaft, a worm wheel mounted upon the heavin shaft en aging with the worm, a spur whee mounts on the worm shaft, a pinion shaft journaled in bearings connected to the davit carriage, a pinion mounted on the pinion shaft means for causing the rotation of the pinion shaft, and a winding shaft mounted in bearin connected to the davit carriage, winding us mounted u on the winding shaft, idlers connected to t e davit cranes, davit falls passing over the idlers to be wound on, and unwound from, the winding-drums, a spur Wheel mounted on the winding shaft, a pinion shaft mounted in bearings connected to the davit carriage, apinion mounted on the pinion shaft on aging with the spur wheel of the winding drum, means for causing the rotation of the pinion, a friction drum mounted on the winding shaft and an adjustable friction strap engaging with the friction drum.

Toronto, February 15th 1983.

FRED ELLSWGRTH MARTIN. Signed in the presence of Rrcnas, Ouvn Barnum. 

